Improvement in bronzing-machines



CHARLES SHOOP.

Improvement in Brewing-Machines.

Patented April 23,1872.

l I l l I i l 1 l Illllllll|l|lr UNITED STATES CHARLES SHOOP, OF BUFFALO, NEW YORK.

IMPROVEME-NT IN BRQNZINC--MACHINES.`

f Specification forming part of Letters Patent No. 126,097, dated April 23, 1872.

SPECIFICATION.

I, CHARLES SHooP, of the city of' Buffalo, county of Erie and State of N ew York, have invented certain Improvements in Bronzing- Machines, of which the following is a specification:

My invention consists, first, in combination with a sheet-carrying cylinder, of a griper-bar, gripers, actuating-cams, and reacting springs; the cams operating to open the gripers by forcing the griper-bar outward, while the gripers are closed by the reacting springs, as will be hereinafter more particularly set forth. Second, the combination, with the bronze-hopper, of a knocker, the concussion of which against the hopper causes the bronze to sift through the perforated bottom thereof'. p

In the accompanying drawing, Figure I is a vertical section of a machine provided with my improvements. Fig. II is a similar section made at right angles to that of Fig. I, showing the gripers closed. Fig. III is a fragmentary view, showing the gripers in an open position. Fig. IV is a detached view, showing the gripers when closed, countersunkilush with the surface of the cylinder. Figs. V, VI, and VII arefragmen tary views, showingthe knocker and the manner of `actuating the same.

Like letters designate like parts in each of the figures. l l

A A are two standards of the frame of a bronzing-machine; B, the bronze-hopper, supported above at the top thereof, and provided with a perforated bottom, which may be closed and regulated by a correspondingly-perforated slide, if required. O is the bronzing-roller, arranged underneath and having its bearings in the standards A. Distributing-rollers for receiving the bronze from the hopper and distributing it upon the bronzingroller C may be employed in any of the well-known methods. D is the hollow sheet-carrying cylinder, and d the shaft thereof, mounted in suitable bearings in the standards beneath the bronzing-roller. is a griper-bar, arranged within the cylinder and parallel with the shaft thereof; the ends extending outward through radial slots in the heads of V-the cylinder, where they are provided with friction-rollers e. f is an arm or web extending outward from the griper-bar through a longitudinal slot in the shell of the cylinder the shell of the sheet-carrying cylinder.

and provided at its end with a griper or gripers g. rlhe griper may be made in one piece in the form of' a clamping-plate, extending the length of the cylinder, or made of several small clamps,attached to a single arm, f, or to independent arms, connecting with the griperbar. By making the griper in one piece of the length of the cylinder, it will,when shut, close the slot in the cylinder and prevent the escape of the bronze through it into the cylinder. If several smaller gripers are used with independent arms, passing through holes in the cylinder and connecting with the griper-,shaft the effect will be the same, as each griper when shut will overlap the edges of the arm-hole and thus prevent the bronze sifting through. The seat for the gripers may be countersunk, so that when the latter are closed the surf'ace thereof will be flush with the surface of the cylinder. p 1o are two cams, attached to the inside of the standards above the shaft of the cylinder D in such a position as to cause the rollers e at the ends of the griper-bar to engage therewith and elevate the bar and open the griper for receiving a sheet. 1o p are similar releasing-cams, arranged below the shaft, l

near with which the same rollers engage, and by which the gripers are opened and the bronzed sheet released. The griper-bar may be guided in its movements by the slots in the heads of the cylinder or by the griper-arm in the slot of s are reacting spiral springs, which connect the shaft d with the griper-bar and operate in an obvious manner to close the gripers when released from the griper-cams.

My improved construction of griper adapts it to a bronzing-machine in which the sheet is required to be firmly griped in order to hold it against the brushing action of' the bronzingroller.

I is a hammer, attached to the outside of the standard by a spring-arm,f. 'm is a cam or inoline on the end of the bronzing-roller, the action of which', as the roller revolves, is to force outward the hammer, which, when freed from the cam, strikes a blow against the end of' the bronze-hopper, the concussion of which causes the bronze to sift through the perforations ont0 the distributing or bronzing roller. The degree of the concussion can be regulated by PATENT OFFICE. A

Two or more sets of cams and gripers may be employed in the same cylinder, as desired. I am aware that gripers combined with the cylinder and actuated by a cam and reactingspring is not new, and I donot Wish, therefore, to lay claim,broadly, to such combination; but

What I claim as my invention is- 1. The combination, with the sheet-carrying cylinder D, of the gripers g, griper-bar e, cams p p', and reacting springs s, constructed and operating substantially as hereinbefore set forth. y

2. The combination, with the bronze-hopper and bronzing or distributing roller, of the spring knocker I, substantially as hereinbefore set forth.

CHARLES SHOOP. Witnesses:

J oHN J. BONNER, EDWARD WILHELM. 

